flonase changes this is violet. she's been waiting for this moment for awhile. a moment other kids wouldn't think twice about. her first bowl of cheerios. because now that cheerios are gluten free, violet, and many others are enjoying their first bowl today. >>> "20/20" continues with what the camera didn't see. >> reporter: under a threatening sky this month, a storm blowing in over the gwinnett county courthouse. of murdering his wife. >> the new murder in georgia where a father of two is charged of killing his wife pretending she disappeared. >> before he called police, he calls a lawyer. >> reporter: in court, two powerful teams head to head, prosecutor lisa jones. >> the evidence will prove, that matthew leili murdered his wife. >> reporter: tom clegg, matt leili's criminal defense attorney. >> he is falsely accused, pure and simple. >> reporter: exhibit "a," the autopsy. the medical examiner, often a casemaker for prosecutors, helpfully testifies she sure does suspect foul play. but if the jury is hoping for something directly connecting matt leili to his